Control Circuit for a ( Linear motion ) Motor

[BM Engineer]

Hello,
I want to build a circuit that would supply a motor of the following type:
Megamat MCZ 2 Easy



This is used to move a patient chair in a linear monition up or down.
These are the technical specifications:



Please what are your suggestions Do I have to use a circuit with a power supply, or I can use battery powered circuit for this load? What parts do you recommend to use? relays are suitable ?

 

[Minder]

One based on this circuit http://www.discovercircuits.com/DJ-Circuits/simplepwm2.htm
Or they are about $5.00 on ebay DC PWM controller.
You would need to add a reversing relay, however.
M.

 

[Alec_t]

You might also want to add a circuit to prevent sudden reversal of the motor.

 

[Minder]

Forgot: on the subject of power you could just use a simple step down transformer and a bridge rectifier, the ebay type controllers usually have any capacitors built in.
This is if the chair is used in just one permanent location.
M.

 

[BM Engineer]

You might also want to add a circuit to prevent sudden reversal of the motor.

Sorry but what would be the cause of sudden reversal of the motor ?

 

[BM Engineer]

One based on this circuit http://www.discovercircuits.com/DJ-Circuits/simplepwm2.htm
Or they are about $5.00 on ebay DC PWM controller.
You would need to add a reversing relay, however.
M.

Sorry but Why do I need to use a PWM controller. Can't the motor be driven with a continued DC voltage ?

 

[Alec_t]

Sorry but what would be the cause of sudden reversal of the motor ?

Operator error.
To avoid stress on the motor and its gearing the motor should halt before being reversed.

 

[Minder]

Sorry but Why do I need to use a PWM controller. Can't the motor be driven with a continued DC voltage ?

Would you not need gradual action, rather than full on/off?
M.

 

[BM Engineer]

Would you not need gradual action, rather than full on/off?
M.

No I think it's ok
I just want to make it as simple as possible

 

[Minder]

Then a simple joystick would work, you need a reversing relay unless the J.S. has enough contacts.
M.